<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>别踩白块</title>
    <link rel="stylesheet" href="css/index.css">
</head>
<body>
    <h2>score</h2>
    <h2 id="score">0</h2>

    <div id="main">
        <div id="con">

        </div>
    </div>
    <div class="btn">
        <button class="start" onclick="start()">开始游戏</button>
    </div>
    
</body>
<script src="js/index.js"></script>
</html>